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. 2011 Nov 14;12(1):151.
doi: 10.1186/1465-9921-12-151.

Multidimensional prognostic indices for use in COPD patient care. A systematic review

Wouter D van Dijk  1 , Lisette van den Bemt, Saskia van den Haak-Rongen, Erik Bischoff, Chris van Weel, Johannes C C M in 't Veen, Tjard R J Schermer
Affiliations

Multidimensional prognostic indices for use in COPD patient care. A systematic review

Wouter D van Dijk et al. Respir Res. .

Abstract

Background: A growing number of prognostic indices for chronic obstructive pulmonary disease (COPD) is developed for clinical use. Our aim is to identify, summarize and compare all published prognostic COPD indices, and to discuss their performance, usefulness and implementation in daily practice.

Methods: We performed a systematic literature search in both Pubmed and Embase up to September 2010. Selection criteria included primary publications of indices developed for stable COPD patients, that predict future outcome by a multidimensional scoring system, developed for and validated with COPD patients only. Two reviewers independently assessed the index quality using a structured screening form for systematically scoring prognostic studies.

Results: Of 7,028 articles screened, 13 studies comprising 15 indices were included. Only 1 index had been explored for its application in daily practice. We observed 21 different predictors and 7 prognostic outcomes, the latter reflecting mortality, hospitalization and exacerbation. Consistent strong predictors were FEV1 percentage predicted, age and dyspnoea. The quality of the studies underlying the indices varied between fairly poor and good. Statistical methods to assess the predictive abilities of the indices were heterogenic. They generally revealed moderate to good discrimination, when measured.

Limitations: We focused on prognostic indices for stable disease only and, inevitably, quality judgment was prone to subjectivity.

Conclusions: We identified 15 prognostic COPD indices. Although the prognostic performance of some of the indices has been validated, they all lack sufficient evidence for implementation. Whether or not the use of prognostic indices improves COPD disease management or patients' health is currently unknown; impact studies are required to establish this.

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Figures

Figure 1
Figure 1
PRISMA Flow Diagram. * Three articles excluded based on lack of scoring system, 11 due to absence of prognostic outcome, 3 were not the original publication of the index, and 1 was not COPD specific.
See this image and copyright information in PMC

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